The equilibrium constant K c for the reaction PCl 3 ( g ) + Cl 2 ( g ) ⇌ PCl 3 ( g ) equals 4.1 at 300°C. a A sample of 35.8 g of PCl 5 is placed in a 5.0-L reaction vessel and heated to 300°C. What are the equilibrium concentrations of all of the species? b What fraction of PCl 5 has decomposed? c If 35.8 g of PCl 5 were placed in a 1.0-L vessel, what qualitative effect would this have on the fraction of PCl 5 that has decomposed (give a qualitative answer only; do not do the calculation)? Why?

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General Chemistry - Standalone boo...

11th Edition
Steven D. Gammon + 7 others
Publisher: Cengage Learning
ISBN: 9781305580343
BuyFind

General Chemistry - Standalone boo...

11th Edition
Steven D. Gammon + 7 others
Publisher: Cengage Learning
ISBN: 9781305580343

Solutions

Chapter 14, Problem 14.103QP
Textbook Problem

The equilibrium constant Kc for the reaction

PCl 3 ( g ) + Cl 2 ( g ) PCl 3 ( g )

equals 4.1 at 300°C.

  1. a A sample of 35.8 g of PCl5 is placed in a 5.0-L reaction vessel and heated to 300°C. What are the equilibrium concentrations of all of the species?
  2. b What fraction of PCl5 has decomposed?
  3. c If 35.8 g of PCl5 were placed in a 1.0-L vessel, what qualitative effect would this have on the fraction of PCl5 that has decomposed (give a qualitative answer only; do not do the calculation)? Why?

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Chapter 14 Solutions

General Chemistry - Standalone book (MindTap Course List)
Ch. 14.5 - Carbon monoxide and hydrogen react in the presence...Ch. 14.6 - Phosphorus pentachloride gives an equilibrium...Ch. 14.6 - What is the equilibrium composition of a reaction...Ch. 14.6 - Phosphorus pentachloride, PCl5, decomposes when...Ch. 14.6 - A and B read to produce C according to the...Ch. 14.7 - Consider each of the following equilibria, which...Ch. 14.8 - Can you increase the amount of product in each of...Ch. 14.8 - Consider the possibility of converting carbon...Ch. 14.8 - Given the hypothetical exothermic reaction...Ch. 14.8 - Consider the reaction 2CO2(g)2CO(g)+O2(g);H=566kJ...Ch. 14 - Consider the reaction N2O4(g)2NO2(g). Draw a graph...Ch. 14 - When 1.0 mol each of H2(g) and I2(g) are mixed at...Ch. 14 - Explain why the equilibrium constant for a gaseous...Ch. 14 - Obtain the equilibrium constant for the reaction...Ch. 14 - Which of the following reactions involve...Ch. 14 - Explain why pure liquids and solids can be ignored...Ch. 14 - What qualitative information can you get from the...Ch. 14 - What is the reaction quotient? How is it useful?Ch. 14 - List the possible ways in which you can alter the...Ch. 14 - Two moles of H2 are mixed with l mol O2 at 25C. No...Ch. 14 - How is it possible for a catalyst to give products...Ch. 14 - List four ways in which the yield of ammonia in...Ch. 14 - A chemist put 1.18 mol of substance A and 2.85 mol...Ch. 14 - The reaction 3A(g)+B(s)2C(aq)+D(aq) occurs at 25C...Ch. 14 - A graduate student places 0.272 mol of PCl3(g) and...Ch. 14 - An experimenter places the following...Ch. 14 - Chemical Equilibrium I Part 1: You run the...Ch. 14 - Chemical Equilibrium II Magnesium hydroxide....Ch. 14 - During an experiment with the Haber process, a...Ch. 14 - Suppose liquid water and water vapor exist in...Ch. 14 - A mixture initially consisting of 2 mol CO and 2...Ch. 14 - When a continuous stream of hydrogen gas. H2,...Ch. 14 - For the reaction 2HI(g)H2(g)+I2(g) carried out at...Ch. 14 - An experimenter introduces 4.0 mol of gas A into a...Ch. 14 - The following reaction is earned out at 500 K in a...Ch. 14 - For the endothermic reaction AB(g)A(g)+B(g), the...Ch. 14 - During the commercial preparation of sulfuric...Ch. 14 - At some temperature, a 100-L reaction vessel...Ch. 14 - A 2.500-mol sample of phosphorus pentachloride,...Ch. 14 - You place 4.00 mol of dinitrogen trioxide, N2O3,...Ch. 14 - You place 0.600 mol of nitrogen, N2, and 1.800 mol...Ch. 14 - Nitrogen monoxide, NO, reacts with bromine, Br2,...Ch. 14 - In the contact process, sulfuric acid is...Ch. 14 - Methanol, CH3OH, formerly known as wood alcohol,...Ch. 14 - Write equilibrium-constant expressions Kc for each...Ch. 14 - Write equilibrium-constant expressions Kc for each...Ch. 14 - The equilibrium-constant expression for a gas...Ch. 14 - The equilibrium-constant expression for a gas...Ch. 14 - The equilibrium-constant expression for a reaction...Ch. 14 - The equilibrium-constant expression for a reaction...Ch. 14 - The equilibrium constant Kc, for the equation...Ch. 14 - The equilibrium constant Kc for the equation...Ch. 14 - A 13.0-L reaction vessel at 499C contained...Ch. 14 - A 4.00-L vessel contained 0.0148 mol of phosphorus...Ch. 14 - Obtain the value of Kc for the following reaction...Ch. 14 - Obtain the value of Kc for the following reaction...Ch. 14 - At 60C, 3.76 mol of nitrosyl bromide, NOBr, placed...Ch. 14 - A 2 00-mol sample of nitrogen dioxide was placed...Ch. 14 - Write equilibrium-constant expressions Kp for each...Ch. 14 - Write equilibrium-constant expressions Kp for each...Ch. 14 - The value of Kc for the following reaction at 298C...Ch. 14 - The equilibrium constant Kc equals 0.0952 for the...Ch. 14 - The reaction SO2(g)+12O2(g)SO3(g) has Kp equal to...Ch. 14 - Fluorine, F2, dissociates into atoms on heating....Ch. 14 - Write the expression for the equilibrium constant...Ch. 14 - For each of the following equations, give the...Ch. 14 - On the basis of the value of Kc decide whether or...Ch. 14 - Would either of the following reactions go almost...Ch. 14 - Hydrogen fluoride decomposes according to the...Ch. 14 - Suppose sulfur dioxide reacts with oxygen at 25C....Ch. 14 - The following reaction has an equilibrium constant...Ch. 14 - The following reaction has an equilibrium constant...Ch. 14 - Methanol, CH3OH, is manufactured industrially by...Ch. 14 - Sulfur trioxide, used to manufacture sulfuric...Ch. 14 - Phosgene, COCl2, used in the manufacture of...Ch. 14 - Nitrogen monoxide, NO, is formed in automobile...Ch. 14 - Iodine and bromine react to give iodine...Ch. 14 - Initially a mixture contains 0.850 mol each of N2...Ch. 14 - Calculate the composition of the gaseous mixture...Ch. 14 - The equilibrium constant Kc, for the reaction...Ch. 14 - Suppose 1.000 mol CO and 3.000 mol H2 are put in a...Ch. 14 - The equilibrium constant Kc for the reaction...Ch. 14 - Consider the equilibrium FeO(s)+CO(g)Fe(s)+CO2(g)...Ch. 14 - a Predict the direction of reaction when chlorine...Ch. 14 - What would you expect to be the effect of an...Ch. 14 - Indicate whether either an increase or a decrease...Ch. 14 - Methanol is prepared industrially from synthesis...Ch. 14 - One way of preparing hydrogen is by the...Ch. 14 - Use thermochemical data (Appendix C) to decide...Ch. 14 - Use thermochemical data (Appendix C) to decide...Ch. 14 - What would you expect to be the general...Ch. 14 - Predict the general temperature and pressure...Ch. 14 - A mixture of carbon monoxide, hydrogen, and...Ch. 14 - An equilibrium mixture of SO3, SO2, and O2 at 727C...Ch. 14 - At 850C and 1.000 atm pressure, a gaseous mixture...Ch. 14 - An equilibrium mixture of dinitrogen tetroxide,...Ch. 14 - A 2.50-L vessel contains 1.75 mol N2, 1.75 mol H2,...Ch. 14 - A vessel originally contained 0.0200 mol iodine...Ch. 14 - A gaseous mixture containing 1.00 mol each of CO,...Ch. 14 - A 2.0-L reaction flask initially contains 0.010...Ch. 14 - Hydrogen bromide decomposes when heated according...Ch. 14 - Iodine monobromide, IBr, occurs as brownish-black...Ch. 14 - Phosgene, COCl2, is a toxic gas used in the...Ch. 14 - Dinitrogen tetroxide, N2O4, is a colorless gas...Ch. 14 - Suppose you start with a mixture of 1.00 mol CO...Ch. 14 - What are the moles of substances present at...Ch. 14 - The amount of nitrogen dioxide formed by...Ch. 14 - The equilibrium constant Kc for the synthesis of...Ch. 14 - For the reaction N2(g)+3H2(g)2NH3(g) show that Kc...Ch. 14 - For the reaction COCl2(g)CO(g)+Cl2(g) show that Kc...Ch. 14 - At high temperatures, a dynamic equilibrium exists...Ch. 14 - At high temperatures, a dynamic equilibrium exists...Ch. 14 - The equilibrium constant Kc for the reaction...Ch. 14 - At 25C in a closed system, ammonium hydrogen...Ch. 14 - At moderately high temperatures, SbCl5 decomposes...Ch. 14 - The following reaction is important in the...Ch. 14 - Sulfuryl chloride is used in organic chemistry as...Ch. 14 - Phosgene was used as a poisonous gas in World War...Ch. 14 - Gaseous acetic acid molecules have a certain...Ch. 14 - Gaseous acetic acid molecules have a certain...Ch. 14 - When 0.112 mol of NO and 18.22 g of bromine are...Ch. 14 - When 0.0322 mol of NO and 1.52 g of bromine are...Ch. 14 - Oscillating reactions were first reported in 1958....Ch. 14 - In what way are slime molds and leopards spots...Ch. 14 - A chemist placed a mixture of CO2(g) and CF4(g)...Ch. 14 - You mix equal moles of N2, O2, and NO and place...Ch. 14 - Consider the mixture described in the previous...Ch. 14 - The equilibrium constant Kc for the equation...Ch. 14 - Consider the reaction N2O4(g)2NO2(g). Would you...Ch. 14 - A researcher put 0.400 mol PCl3 and 0.600 mol Cl2...Ch. 14 - Ammonium hydrogen sulfide. NH4HS, is unstable at...Ch. 14 - A chemist wants to prepare phosgene, COCl2, by the...Ch. 14 - Iodine, I2, is a blue-black solid, but it easily...Ch. 14 - Nitrogen dioxide, NO2, is a red-brown gas that...Ch. 14 - An evacuated 1.000-L flask was filled at room...Ch. 14 - A container with a volume of 1.500 L was evacuated...Ch. 14 - Nitrosyl chloride gas, NOCl, was introduced into a...Ch. 14 - The major constituents of the atmosphere are...Ch. 14 - Iodine, I2, and bromine, Br2, react to produce...Ch. 14 - Sulfur dioxide reacts with oxygen to produce...Ch. 14 - Molecular bromine, Br2, dissociates at elevated...Ch. 14 - Consider the production of ammonia from its...Ch. 14 - A mixture of 0.0565 mol phosphorus pentachloride,...Ch. 14 - Calcium carbonate, CaCO3, decomposes when heated...Ch. 14 - The following equilibrium was studied by analyzing...Ch. 14 - The following equilibrium was studied by analyzing...Ch. 14 - Phosphorus pentachloride, PCl5, decomposes on...Ch. 14 - Antimony(V) chloride. SbCl5, decomposes on heating...

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